The actress, who is dating Brad Pitt, was interested in the opposite sex from a very early age and "made out" with boys at nursery.
She said in an interview with Britain's OK! magazine: "I was a member of a group called the Kissy Girls. I was very sexual in kindergarten. I created a game where I would kiss the boys and give them cooties. "Then we would make out and we would take our clothes off. I got in a lot of trouble!" The brunette lost her virginity aged 14 to her first boyfriend, and has revealed she began cutting him with a knife after the sex "wasn't enough".
Angelina explained: "I had started having sex with my boyfriend and the sex and the emotions didn't feel enough. I was no longer a little girl. In a moment of wanting to feel closer to my boyfriend I grabbed a knife and cut him. He cut me back. "We had an exchange of something and we were covered in blood, my heart was racing. Then whenever I felt trapped, I'd cut myself. I have a lot of scars.
"It was an age when I felt adventurous and after a few beers things happened." The 31-year-old stopped self-harming when she adopted five-year-old Cambodian boy Maddox.
Angelina said: "It had something to do with becoming a mother. That was the biggest change in my life and made me feel complete. I learned to accept responsibility for myself, my children and my partner."